AARoads Forum

Regional Boards => Mid-South => Topic started by: Arkansastravelguy on September 29, 2014, 05:21:57 PM

Title: Steepest state routes
Post by: Arkansastravelguy on September 29, 2014, 05:21:57 PM
(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Ftapatalk.imageshack.com%2Fv2%2F14%2F09%2F29%2F12797de7393c1e610362efa1d1049cd0.jpg&hash=952c385760a31c10bc46fa529cba86815e8ee99c)
On AR 155 at Mount Nebo. Is there a steeper state route? Besides Hawaii.


iPhone
Title: Re: Steepest state routes
Post by: hotdogPi on September 29, 2014, 05:26:21 PM
Are there any state routes that are roller coasters?
Title: Re: Steepest state routes
Post by: oscar on September 29, 2014, 05:47:58 PM
The only steeper route in Hawaii is not a state route.

Part of CA 108, east of Sonora Pass, is posted at a 26% grade.  It did not seriously strain my four-cylinder rental car when I traveled it westbound, so the grade must be either overstated or very short.
Title: Re: Steepest state routes
Post by: Arkansastravelguy on September 29, 2014, 08:20:14 PM
This grade is for over 2 miles


iPhone
Title: Re: Steepest state routes
Post by: Revive 755 on September 29, 2014, 08:29:50 PM
While not as steep as the California grade mentioned, MO 376 in the Branson area has a grade singed for 19%:

Streetview of sign (https://www.google.com/maps?q=branson,+mo&hl=en&ll=36.639395,-93.309889&spn=0.013946,0.021865&sll=36.639337,-93.309962&sspn=0.007008,0.010933&hnear=Branson,+Taney+County,+Missouri&t=m&z=16&layer=c&cbll=36.639337,-93.309962&panoid=jsWH9DDEMjjlOqLirEMLpg&cbp=12,92.05,,2,3.04)
Title: Re: Steepest state routes
Post by: hbelkins on September 29, 2014, 08:53:55 PM
What is the evacuation marker in the background for?
Title: Re: Steepest state routes
Post by: sdmichael on September 29, 2014, 09:43:39 PM
Quote from: oscar on September 29, 2014, 05:47:58 PM
The only steeper route in Hawaii is not a state route.

Part of CA 108, east of Sonora Pass, is posted at a 26% grade.  It did not seriously strain my four-cylinder rental car when I traveled it westbound, so the grade must be either overstated or very short.

The 26% section is not long, but noticeable. Overall, Sonora Pass has rather steep grades for extended periods, mostly on the eastern side. To my knowledge, it is the steepest grade posted on ANY State Highway in California.
Title: Re: Steepest state routes
Post by: US71 on September 29, 2014, 11:22:05 PM
Quote from: hbelkins on September 29, 2014, 08:53:55 PM
What is the evacuation marker in the background for?

Arkansas Nuclear One Emergency Evacuation, most likely ;)